Power Tool Consumables -2x Water Level Indicator Potted Plants Durable Moisture Shortage Gauge 7"" Highlights generic brand 2x Water Level Indicator Potted Plants Durable Moisture Shortage Gauge 7 "" Description: No batteries or electricity needed, plug in and use. This water level gauge is used for flower pots. It can display the water level to remind you to water. When there is no water in the pot, the water level gauge buoy will be at the bottom. On that note, raise the water level and water the plants through the hole. Simply insert the level into the ground and it will help your plants grow healthy and strong. A perfect tool for indoor and outdoor use. Specification: Material: Plastic Length: Approx. 17.5 cm / 7 inch Package includes: 2 pieces water level indicator Note: Do not pour too much water, it is better to keep the buyo below the upper water mark.